constant circ on baseboard

Mellow_2

I like the buderus boiler and its ability to be set to constant circ. I have to change out a boiler that is only one zone of heat and The custimer wants all the bells and whistles. Would this be a good job for constant circ???? The zone is a split loop baseboard system and I have been instructed that CC (constant circ) works best on large mass systems. I like using sensors when I can and setting up the systems the way they were designed. I want to use the 2107 with a room sensor and not restrict it by installing a circ. relay to turn the pump on and off. If the system design is a 180 degree at 0 degree outside with 20 degree delta T, how could I set the control to get the most out of it? (assuming it is the perfect standard design system) Any sugestions are welcome, Thanks in advance.

Ted_9

This will make the customer very comfortable and save money too. Its a great idea and one that I have used.

Patriot Heating & Cooling, Inc.

Robert Depew

pump run

I have been installing constant running pumps on a single zone systom sinse 66 and have had great satisfactson. In fact replaced a B&G 100 this week that has been on since 68 running and only replaced 2 couplers. If you set the heat antisipator right and short cycle a little you can get the differance down to .75 degrees. Have hundreds doing it.

S Ebels

Curious

What method or control do you use to keep the boiler out of condensation trouble? It would seem that in milder weather or shoulder seasons the boiler would rarely get above the condensation point before the stat satisfies. I'll second the opinion that constant circ is a bonus for comfort and economy.

I'm always looking for a new twist.

Robert Depew

Most of your baseboard systems are designed to operate at a temperature not to condensate. The baseboard BTU drops off dramaticly below 140 you need the tempureture differance to get air flow. That is the basebourd differance. Boilers that are 38 years old and operated in this mold are still going strong. I cann't argue with the number that are out there but we have system 0 degree with 20 mile/per/hr wind and 200 degree water. American Standard, Burnham, and National boilers on this style off system and minimum # of failers. I have no flue problems to speak of. If i want to have a controled zone I figure the zone at 160 degrees and run it as a slave.